Hoshi Onsen (Chojukan)
In Japanese: 法師温泉（長寿館）
A single inn founded 150 years ago in the mountains of Joshinetsu Kogen National Park. In its wooden Hoshi-no-yu bath hall, a registered cultural property, hot water bubbles up through the floor of the bath.
Registered Tangible Cultural Property (main building, Hoshi-no-yu bath hall and annex)
Nearby
- Shima Onsen ≈ 25 min by car
- Minakami Onsen ≈ 35 min by car
- Doai Station ≈ 40 min by car
- Mount Tanigawa & Tanigawadake Ropeway ≈ 40 min by car
- Ichinokurasawa ≈ 40 min by car
Travel times are rough estimates by car.
- Getting there
- From Jomo-Kogen Sta. (Joetsu Shinkansen), Kan-etsu bus to Sarugakyo (about 38 min), then the town bus to Hoshi Onsen (about 14 min; 4 buses a day)
Few buses — check times or join a tour - Fee
- Day bathing: adults ¥1,500, children ¥500
- Good to know
- Day bathing: reception 11:00–13:30 (stay until 14:00); not available on Wednesdays and some other days. Hoshi-no-yu is mixed bathing, with no bathing wear or towels allowed
- Time needed
- 2 h
Checked against the official Japanese website on 2026-10-15. Report outdated info